/** Initialize block keys */ private synchronized void generateKeys() { if (!isMaster) { return; } /* * Need to set estimated expiry dates for currentKey and nextKey so that if * NN crashes, DN can still expire those keys. NN will stop using the newly * generated currentKey after the first keyUpdateInterval, however it may * still be used by DN and Balancer to generate new tokens before they get a * chance to sync their keys with NN. Since we require keyUpdInterval to be * long enough so that all live DN's and Balancer will sync their keys with * NN at least once during the period, the estimated expiry date for * currentKey is set to now() + 2 * keyUpdateInterval + tokenLifetime. * Similarly, the estimated expiry date for nextKey is one keyUpdateInterval * more. */ setSerialNo(serialNo + 1); currentKey = new BlockKey(serialNo, timer.now() + 2 * keyUpdateInterval + tokenLifetime, generateSecret()); setSerialNo(serialNo + 1); nextKey = new BlockKey(serialNo, timer.now() + 3 * keyUpdateInterval + tokenLifetime, generateSecret()); allKeys.put(currentKey.getKeyId(), currentKey); allKeys.put(nextKey.getKeyId(), nextKey); }
/** * Update block keys, only to be used in master mode */ synchronized boolean updateKeys() throws IOException { if (!isMaster) { return false; } LOG.info("Updating block keys"); removeExpiredKeys(); // set final expiry date of retiring currentKey allKeys.put(currentKey.getKeyId(), new BlockKey(currentKey.getKeyId(), timer.now() + keyUpdateInterval + tokenLifetime, currentKey.getKey())); // update the estimated expiry date of new currentKey currentKey = new BlockKey(nextKey.getKeyId(), timer.now() + 2 * keyUpdateInterval + tokenLifetime, nextKey.getKey()); allKeys.put(currentKey.getKeyId(), currentKey); // generate a new nextKey setSerialNo(serialNo + 1); nextKey = new BlockKey(serialNo, timer.now() + 3 * keyUpdateInterval + tokenLifetime, generateSecret()); allKeys.put(nextKey.getKeyId(), nextKey); return true; }
/** Initialize block keys */ private synchronized void generateKeys() { if (!isMaster) return; /* * Need to set estimated expiry dates for currentKey and nextKey so that if * NN crashes, DN can still expire those keys. NN will stop using the newly * generated currentKey after the first keyUpdateInterval, however it may * still be used by DN and Balancer to generate new tokens before they get a * chance to sync their keys with NN. Since we require keyUpdInterval to be * long enough so that all live DN's and Balancer will sync their keys with * NN at least once during the period, the estimated expiry date for * currentKey is set to now() + 2 * keyUpdateInterval + tokenLifetime. * Similarly, the estimated expiry date for nextKey is one keyUpdateInterval * more. */ setSerialNo(serialNo + 1); currentKey = new BlockKey(serialNo, timer.now() + 2 * keyUpdateInterval + tokenLifetime, generateSecret()); setSerialNo(serialNo + 1); nextKey = new BlockKey(serialNo, timer.now() + 3 * keyUpdateInterval + tokenLifetime, generateSecret()); allKeys.put(currentKey.getKeyId(), currentKey); allKeys.put(nextKey.getKeyId(), nextKey); }
/** Initialize block keys */ private synchronized void generateKeys() { if (!isMaster) return; /* * Need to set estimated expiry dates for currentKey and nextKey so that if * NN crashes, DN can still expire those keys. NN will stop using the newly * generated currentKey after the first keyUpdateInterval, however it may * still be used by DN and Balancer to generate new tokens before they get a * chance to sync their keys with NN. Since we require keyUpdInterval to be * long enough so that all live DN's and Balancer will sync their keys with * NN at least once during the period, the estimated expiry date for * currentKey is set to now() + 2 * keyUpdateInterval + tokenLifetime. * Similarly, the estimated expiry date for nextKey is one keyUpdateInterval * more. */ setSerialNo(serialNo + 1); currentKey = new BlockKey(serialNo, timer.now() + 2 * keyUpdateInterval + tokenLifetime, generateSecret()); setSerialNo(serialNo + 1); nextKey = new BlockKey(serialNo, timer.now() + 3 * keyUpdateInterval + tokenLifetime, generateSecret()); allKeys.put(currentKey.getKeyId(), currentKey); allKeys.put(nextKey.getKeyId(), nextKey); }
/** * Update block keys, only to be used in master mode */ synchronized boolean updateKeys() throws IOException { if (!isMaster) return false; LOG.info("Updating block keys"); removeExpiredKeys(); // set final expiry date of retiring currentKey allKeys.put(currentKey.getKeyId(), new BlockKey(currentKey.getKeyId(), timer.now() + keyUpdateInterval + tokenLifetime, currentKey.getKey())); // update the estimated expiry date of new currentKey currentKey = new BlockKey(nextKey.getKeyId(), timer.now() + 2 * keyUpdateInterval + tokenLifetime, nextKey.getKey()); allKeys.put(currentKey.getKeyId(), currentKey); // generate a new nextKey setSerialNo(serialNo + 1); nextKey = new BlockKey(serialNo, timer.now() + 3 * keyUpdateInterval + tokenLifetime, generateSecret()); allKeys.put(nextKey.getKeyId(), nextKey); return true; }
/** * Update block keys, only to be used in master mode */ synchronized boolean updateKeys() throws IOException { if (!isMaster) return false; LOG.info("Updating block keys"); removeExpiredKeys(); // set final expiry date of retiring currentKey allKeys.put(currentKey.getKeyId(), new BlockKey(currentKey.getKeyId(), timer.now() + keyUpdateInterval + tokenLifetime, currentKey.getKey())); // update the estimated expiry date of new currentKey currentKey = new BlockKey(nextKey.getKeyId(), timer.now() + 2 * keyUpdateInterval + tokenLifetime, nextKey.getKey()); allKeys.put(currentKey.getKeyId(), currentKey); // generate a new nextKey setSerialNo(serialNo + 1); nextKey = new BlockKey(serialNo, timer.now() + 3 * keyUpdateInterval + tokenLifetime, generateSecret()); allKeys.put(nextKey.getKeyId(), nextKey); return true; }